Yamata weather in April

In April, Yamata sees average daytime highs of 17°C and overnight lows near 8°C, with 123 mm of precipitation across 12.8 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 19°C by the end. The sky is clear or mostly clear about 31% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of April to 13 h 24 min by month's end. Set against the rest of the year, April is Yamata's 6th-clearest and 4th-windiest month. For the whole year in context, see Yamata's year-round climate.

Daytime high
17°
7th warmest
Overnight low
6th coldest
Precipitation
123 mm
12.8 wet days
Daylight
12 h 54 min
5:15 AM – 6:10 PM
Cloud cover
61%
6th clearest
Wind
8 km/h
4th windiest
Solar energy
4.91 kWh/m²
Travel score
5.0
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 15°C in the first days to 19°C by the end.

A typical April day in Yamata reaches about 17°C in the afternoon and slips back to 8°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 22°C. Set against its neighbours, April runs about 5°C warmer than March and about 5°C cooler than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1145
2155
3155
4155
5156
6156
7166
8166
9166
10167
11167
12177
13177
14177
15178
16178
17178
18188
19188
20189
21189
22189
23199
24199
251910
261910
271910
281910
292010
302011

How April really feels in Yamata

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Yamata weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°626.73.79.81.2
Feb / -1°597.64.110.61.6
Mar12° / 111134.511.72.9
Apr17° / 12312.80.912.95.0
May22° / 13°14814.4013.95.8
Jun24° / 18°19918.1014.45.2
Jul28° / 22°22220.8014.24.4
Aug29° / 23°18019.7013.44.2
Sep25° / 19°22317.3012.25.4
Oct20° / 13°21714.5011.15.6
Nov15° / 819.20.210.14.6
Dec10° / 547.21.39.62.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 15% of April, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14951
24852
34951
44951
54951
64852
74852
84852
94654
104654
114654
124555
134555
144555
154555
164456
174357
184357
194357
204456
214456
224456
234456
244555
254555
264555
274555
284555
294654
304555

Chance of precipitation in April

Any precipitationSnow

Yamata gets around 123 mm of rain and snow over 12.8 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 43% and peaks near 44% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
1437
2437
3436
4436
5445
6445
7445
8444
9444
10444
11444
12443
13443
14443
15443
16443
17443
18442
19442
20442
21432
22432
23432
24421
25421
26411
27411
28410
29400
30400

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
110000
210000
310000
410000
510000
610000
710000
810000
99901
109901
119901
129811
139811
149811
159811
169811
179721
189721
199721
209631
219631
229541
239451
249361
259271
269181
279091
2889101
2988111
3087121

Wind in April

Winds average 8 km/h in April.

Across April, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over April. Sunrise moves from 5:37 AM to 4:57 AM, and sunset from 5:57 PM to 6:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:375:57
212.45:355:58
312.45:345:59
412.55:326:00
512.55:316:01
612.55:306:02
712.65:286:03
812.65:276:03
912.75:256:04
1012.75:246:05
1112.75:226:06
1212.85:216:07
1312.85:196:08
1412.85:186:08
1512.95:176:09
1612.95:156:10
1713.05:146:11
1813.05:136:12
1913.05:116:13
2013.15:106:14
2113.15:096:15
2213.15:076:15
2313.25:066:16
2413.25:056:17
2513.25:036:18
2613.35:026:19
2713.35:016:20
2813.35:006:21
2913.44:596:21
3013.44:576:22

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.91 kWh/m².

For context, solar energy here swings from a low near 2.44 kWh/m² to a high of 5.08 kWh/m² in May across the year — April's 4.91 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in April

Hazard calendar for Yamata

In seasonPeak

In April, Yamata sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Yamata's rainy season runs March–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Yamata?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.0
Sightseeing
5th-best month of the year
1.3
Beach & pool
7th-best month of the year

April is a reasonable time to visit Yamata for sightseeing.

What to pack for Yamata in April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, Yamata sees daytime highs around 17°C and nights near 8°C. Worth packing: a warm layer, rain gear and sun protection. About 13 days see rain.

a warm layerrain gearsun protection

Sea temperature near Yamata in April

The nearest coast averages about 15°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 68 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 7 to Nov 3 — about 4.9 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Yamata in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Yamata peaks around July 15 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 15UV 10Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Yamata in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Yamata is worst in April — around 26 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 14 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1426 µg/m³Dec 1814 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb21Moderate
Mar25Moderate
Apr26Moderate
May24Moderate
Jun20Moderate
Jul17Moderate
Aug16Moderate
Sep16Moderate
Oct16Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Yamata?

Yamata sits at 36.1°N, 139.4°E, 74 m above sea level, in Japan. The nearest listed city is Ranzan, 6.0 km away.

Topography around Yamata

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Yamata.

Within 3 km, the terrain around Yamata has only modest variations in elevation — a maximum elevation change of 83 m around an average of 55 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 539 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,579 m.

The land around Yamata is covered by trees (59%) within 3 km, artificial surfaces (35%), trees (30%) and cropland (29%) within 16 km, and trees (54%) and artificial surfaces (26%) within 80 km.

3 km
83 m
16 km
539 m
80 km
2,579 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Ranzan 6.0 km · Kumagaya 6.0 km · Higashi-Matsuyama 7.0 km · Fukiage-fujimi 7.0 km · Ogawamachi 10 km · Gyōda 10 km · Ōgushi 11 km · Kōnosu 13 km

Japan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
100 V · 50 / 60 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$35,951
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.2
per 100k, 2023
Road deaths
3.6
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 446
Religion
Shintoism 49%Buddhism 46%other 4%Christianity 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Yamata (36.0817°, 139.3716°, elevation 74 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).